Zöliakie Glutenunverträglichkeit-Test: what does this mean exactly?

The MyBody-X Celiac (Zöliakie) test is a home test that measures antibodies against tissue transglutaminase (tTG-IgA) in blood – the recommended first-line marker for celiac disease. A positive result indicates possible celiac disease but is not diagnostic. False negatives occur if the person is already on a gluten-free diet or has IgA deficiency. The test does not replace medical evaluation; a positive or persistent suspicion requires gastroenterological workup including duodenal biopsy. Important: Do not start a gluten-free diet before a confirmed medical diagnosis, as this can interfere with diagnostic accuracy. The test is useful as a screening tool but has limitations. Evidence: practice (based on product page and medical guidelines).